Total Galactic extinction Map (gaiadr3.total_galactic_extinction_map)

The table has 4177920 rows, 10 columns.


This table provides the Total Galactic Extinction (TGE) map for extinction parameters A0 describing the effective total Galactic extinction and related uncertainties at four separate HEALPix levels, namely levels 6 to 9. For further details see Section cu8par_apsis_tge of the online documentation.


If you have used Gaia data in your research, please use the following acknowledgement:

This work has made use of data from the European Space Agency (ESA) mission Gaia (, processed by the Gaia Data Processing and Analysis Consortium (DPAC, Funding for the DPAC has been provided by national institutions, in particular the institutions participating in the Gaia Multilateral Agreement.

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Name Type UCD Unit Description
solution_id long meta.version Solution Identifier
healpix_id long pos.healpix HEALPix identification
healpix_level short pos.healpix HEALPix level used
a0 float phys.absorption.coeff mag Mean A<sub>0</sub> extinction parameter
a0_uncertainty float stat.error
mag Uncertainty for the mean A<sub>0</sub>
a0_min float phys.absorption.coeff
mag Minimum A<sub>0</sub> value used for the HEALPix of interest
a0_max float phys.absorption.coeff
mag Maximum A<sub>0</sub> value used for the HEALPix of interest
num_tracers_used integer meta.number Number of tracers used
optimum_hpx_flag boolean meta.code.class Flag to indicate whether a given HEALPix level is the optimum (True) or not (False)
status short meta.code.status Exit status for TGE